Spinning process and device for the production of a yarn

US5313777A · kind A · utility

Assignee

• Schubert & Salzer Maschinenfabrik AG · DE

Inventors

• Johann Rottmayr · Reutlingen, DE
• Werner Billner · Ingolstadt, DE

Key dates

• Filing date: Feb 19, 1993
• Grant date: May 24, 1994
• Expiry date: Feb 19, 2013

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D01H4/16
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

The instant invention relates to a spinning process and to a device for the production of a yarn. In the spinning process the fibers are conveyed to a perforated collection surface which is subjected to suction in one zone. They are brought together into a fiber accumulation on the collection surface. The fiber accumulation is drawn off from the collection surface and twisted into a yarn of predetermined twist in a twisting element which follows the collection surface in the direction of yarn draw-off. The fibers are accumulated at a suction edge constituting a collection line and are pre-twisted at said collection line.